Patents by Inventor Ildiko Wagner nee Kohary

Ildiko Wagner nee Kohary has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Cyclodextrin polymers swelling quickly and to a great extent in water and process for the preparation thereof
    Patent number: 4547572
    Abstract: The invention relates to cyclodextrin polymers swelling quickly and to a great extent in water and a process for the preparation thereof.The cyclodextrin polymers according to the invention contain as additive n-octanol having or glycol derivative or glycerol.The cyclodextrin polymers according to the invention are prepared by reacting cyclodextrin and epichlorohydrin in aqueous alkaline medium. In the reaction the cyclodextrin is reacted with 10 to 20 moles of an alkali hydroxide, 10 to 20 moles of epichlorohydrin and 2 to 8 moles of an alcohol additive, n-octanol, glycol derivative or glycerol calculated on 1 mole of cyclodextrin optionally in the presence of 10 to 15 moles of an organic solvent vaporizing at the reaction temperature or 8 to 12 moles of a high boiling organic solvent assuring heterogeneous phase.
    Type: Grant
    Filed: February 6, 1984
    Date of Patent: October 15, 1985
    Assignee: Chinoin Gyogyszer es Vegyeszeti Termekek Gyara Rt.
    Inventors: Eva Fenyvesi, Jozsef Szejtli, Bela Zsadon, Balazs Antal, Ildiko Wagner nee Kohary